bush now an economics prof s professor at harvard and ron johnson, director at the institute for new economic thinking and a senior fellow at the roosevelt institute. skwre, good to have you both here. good morning. greg, let me just get you to bounce off of what corker said today. we've had a few senators here and there appear to give on taxes but corker laid it out pretty nicely, if you want to have a discussion about entitlements why wouldn't you get rates out of the way. does that mark a new chapter in these talks? >> it might well. and the whole issue, this whole package is going to look like, republicans have already conceded to some degree on revenue. they'll probably concede a little bit more. the question is what is the president willing to concede on the spending side? the liberal part of the democratic part of the party doesn't want to concede anything on entitlements. that's where the real problem is. the growth of entitlements is going to put us into bankruptcy unless we do something about it. >> do you believe giving him what he wants on rates forces his hand to impress